Nut-lock.



J. D. DUFFY-v NUT LOCK.

APPLICATION FILED MAR.17, 191s.

1087,74 0 Patented m1121914.

JOSEEH E. DUFFY, ST. GLU,

NUT-1405K.

To al? @07mm 'it may concern Be it known that l, Jos'arn l DUFFY, a citizen of the llnited States, residing.r at Sit. Cloud, in the county of Stearns and @tate of Minnesota, have invented certain new and useful Improvements in illut-.lioclzsg and l do hereby declare the following' to be a full, clear, and exact description of the invention, such as will, enable others skilled in the art to which it appertains to inalze and use the saine.

lhis invention relates to new and useful improvements in nut locks for rail joints7 and more particularly to that type which is adapted to extend longitudinally of the rail and loclr the numerous nuts and bolts from bc-icoinina1 accidentally displaced.

Jlnother object of iny invention is to pio vide a device which will be cheap to inanufacture, simple in construction, and effective in operation.

llllith the above and other objects in view.y l will now proceed to describe my invention in the accompanying drawings, in whichM Figure 1 is a side elevation of a fragnient of a rail showing iny improved nut lock applied thereto; Fig. 2 is a longitudinal section taken on line 2 2 of Fig. l; Fia'. 3 is a modified torin of my improved nut lock; and Fig. lis a perspective view of one of the nuts which is used to loclr the plate to the rail.

Referring to the drawings by characters of referf-unce.y 1 indicates the end of a railroad rail abutting; the end 9. of the adjacent rail. rlhese rails consist of the usual heads 3.. webs La and flanges 5.

The usual fish plates G and 7 are provided for the connection of the rails.y these iish plates being pierced at suitable intervals to receive the bolts. Adjacent one of said i'ish plates is provided a longitudinally extending; plate 8 iavinrg a downwardly projecting nieniber 9 formed adjacent one end. This downwardly projecting; rneinber 9 is preferably recessed as shown at 10 to receive the nut adjacent the end of the rail 1.. in angular recess 11 is provided at each end of the locking?,` plate, which is adapted to receive the nuts farthest from the ends of the respective rails, and loclr the saine frein accidental rotation. @ne of the arins fornied by this recess is extended as shown at 1i?. and bent at right angles to the surface of ation of Letters Patent.

arch l?,

the plate, as clearly shown at 13. This lafonted lFeli. ll'a,

Serial Nol 'FE angjular extension 1 3 is adapted to extend around the end of the fish plate and lock the locking plate from longitudinal 1novenient. hear the end opposite the recess 10 il. uiovidc a downwardly extending' tongue 1i. one side of which is lieveled7 shmvn at 1o. and extends upwardly for a short distance. intermediate this downwardly extending` tongue 1d and the recess 10 l preferably provide a recess 1G which is adapted to receive the end of a bolt. ril, shoulder 17 is foiined on the nut 18 and is adapted to be engaged by a spring; tongue 1Q which is formed integral with the plate and i1ninediately adjacent the eccss as clearly shown. this tongue being adapted to spring` out-y wardly and engage the nut when the saine is .in place.

ln Fig. 3 l have shown a niodilied forni of my improved nut lock and the recess 10 is extended7 as clearly shown, to forni the downwardly extending tongue Q1, which is adapted to engage the side of the nut on rail 1 farthest from the end thereof. This iniproved embodiment is provided with a tongue 18 siniilar to the one previously de scribed. intermediate the ends of the locl ing plate l provide a downwardly extending tongue which is provided with a recess intermediate its ends. rlhis downwardly extending; tongue is forined integral with the lock plate, and has a resilient tongue 22 adjacent the recess, which is adapted to operate in a siniilar manner to the tongue 19 when the device is in place on the rail. The end of this locking plate is provid-ed with an angular recess adapted to receive the nut farthest from the end of the rail EZ, and lock the saine from accidental displacement.

ln the operation, the nuts will be referred to as a, o, c and d. and will be placed on the rail in the usual manner. 'lhe plate 8 will then be placed over the saine so that the walls of the recesses 11 will engage the nuts o and c. lhe walls of recess 10 will engage the nut Z). The nut d is then placed on the remaining bolt with the shoulder 1T adjacent the sh plate. lt will be seen that upon turning the nut the spring tongue 19 will be forced inwardly, and as the nut reaches its innerm lst position, the tongue 19 will en* gage one of the sides of the shoulder 1T and prevent the nut from becoming accidentally displaced.

llVhile in the foregoing; l have shown and lil@ described the preferred embodiment of my invention, itis to be understood that may el ange the structure and arrangement of parts within the spirit and scope of the claims.

Having thus fully described my invention, what claim is:

l. In a nut lock for rail joints, a. plate, a downwardly extending tongue formed at one end of said plate, a downwardly extending tongue formed adjacent the other end of said plate, the second tongue being recessed, a resilient tongue forming one wall ot' said recess and adapted to engage a nut and thereby loclr the saine from accidental displacement. Y

2. in a device of the character described, a plate, the ends ot said plate being extended to form recesses, a downwardly extending tongue intermediate the said recesses, the said tongue being provided intermediate its length with recesses adapted to receive the nuts of a rail joint, and a resilient tongue formed integral with one ot the sides of one ot' said recesses and adapted to lock the nut within the said recess from accidental rota tion.

3. In combination with a railroad rail joint having iish plates, a nut loclr compris ing a plate extending longitudinally of one or" said tish plates, extensions formed integral with said plate and projecting longitudinally with relation thereto, said extensions forming recesses, tie ends of said extensions being adapted to be bent around the fish plate, a downwardly extending tongue formed adjacent one of said recesses, said downwardly extending tongue having one of its sides beveled, a tongue formed intermediate said recesses, a resilient tongue formed integral with the downwardly extending tongue and extending longitudinally of the plate, a downwardly extending tongue formed intermediate the resilient tongue and the other of said recesses, said tongue being spaced Pfrom the resilient tongue to form a recess adapted to receve a nut, and a shoulder formed integral with the nut adapted to engage the resilient tongue and prevent said nut from being accidentally displaced.

ln testimony whereof I atiix my signature in presence of two witnesses.

JOSEPH D. DUFFY. lVitnesses:

J. DoNoHUE, Josni MURRAY.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, ID. C. 

